Gnome-PTY-Helper UTMP Hostname Spoofing Vulnerability

BID:15004

Info

Gnome-PTY-Helper UTMP Hostname Spoofing Vulnerability

Bugtraq ID: 15004
Class: Input Validation Error
CVE: CVE-2005-0023
Remote: No
Local: Yes
Published: Oct 03 2005 12:00AM
Updated: Jul 12 2009 05:06PM
Credit: Paul Szabo <[email protected]> disclosed this vulnerability.
Vulnerable: GNOME vte
GNOME libzvt2 1.4.2
Debian Linux 3.1 sparc
Debian Linux 3.1 s/390
Debian Linux 3.1 ppc
Debian Linux 3.1 mipsel
Debian Linux 3.1 mips
Debian Linux 3.1 m68k
Debian Linux 3.1 ia-64
Debian Linux 3.1 ia-32
Debian Linux 3.1 hppa
Debian Linux 3.1 arm
Debian Linux 3.1 amd64
Debian Linux 3.1 alpha
Debian Linux 3.1
Debian Linux 3.0 sparc
Debian Linux 3.0 s/390
Debian Linux 3.0 ppc
Debian Linux 3.0 mipsel
Debian Linux 3.0 mips
Debian Linux 3.0 m68k
Debian Linux 3.0 ia-64
Debian Linux 3.0 ia-32
Debian Linux 3.0 hppa
Debian Linux 3.0 arm
Debian Linux 3.0 alpha
Debian Linux 3.0
Not Vulnerable:

Discussion

Gnome-PTY-Helper UTMP Hostname Spoofing Vulnerability

'gnome-pty-helper' is susceptible to a local UTMP hostname spoofing vulnerability. This issue is due to the failure of the application to properly validate user-supplied data prior to using it to update UTMP records.

This vulnerability allows users to spoof remote hostname information in UTMP records. This may aid attackers by misdirecting administrators and users as to the correct origin of the attacker.

Exploit / POC

Gnome-PTY-Helper UTMP Hostname Spoofing Vulnerability

A proof of concept exploit has been provided by Paul Szabo &lt;[email protected]&gt;:

Solution / Fix

Gnome-PTY-Helper UTMP Hostname Spoofing Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

References

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